add Kokkos

[Crghilardi]

This PR adds a build_tarballs.jl for the Kokkos library.This build is close to default build options, only added openMP support.

Tested locally on x86_64-linux-* , powerpc, and freebsd.
mingw still has some issues I am working through

[Crghilardi]

As far as I understand, mingw is failing with errors about the use of _InterlockedExchangeCompare8

[01:28:52] cd /workspace/srcdir/kokkos-3.4.01/build/core/src && /opt/bin/x86_64-w64-mingw32-libgfortran3-cxx11/x86_64-w64-mingw32-g++ --sysroot=/opt/x86_64-w64-mingw32/x86_64-w64-mingw32/sys-root/  -DKOKKOS_DEPENDENCE -Dkokkoscore_EXPORTS @CMakeFiles/kokkoscore.dir/includes_CXX.rsp -O3 -DNDEBUG   -o CMakeFiles/kokkoscore.dir/impl/Kokkos_hwloc.cpp.obj -c /workspace/srcdir/kokkos-3.4.01/core/src/impl/Kokkos_hwloc.cpp
[01:28:54] In file included from /workspace/srcdir/kokkos-3.4.01/core/src/Kokkos_Atomic.hpp:187:0,
[01:28:54]                  from /workspace/srcdir/kokkos-3.4.01/core/src/impl/Kokkos_HostBarrier.hpp:49,
[01:28:54]                  from /workspace/srcdir/kokkos-3.4.01/core/src/impl/Kokkos_HostBarrier.cpp:47:
[01:28:54] /workspace/srcdir/kokkos-3.4.01/core/src/impl/Kokkos_Atomic_Windows.hpp: In function ‘T Kokkos::atomic_compare_exchange(volatile T*, const T&, typename std::enable_if<(sizeof (T) == sizeof (char)), const T&>::type)’:
[01:28:54] /workspace/srcdir/kokkos-3.4.01/core/src/impl/Kokkos_Atomic_Windows.hpp:88:58: error: there are no arguments to ‘_InterlockedCompareExchange8’ that depend on a template parameter, so a declaration of ‘_InterlockedCompareExchange8’ must be available [-fpermissive]
[01:28:54]                                         *((CHAR*)&compare));
[01:28:54]                                                           ^
[01:28:54] /workspace/srcdir/kokkos-3.4.01/core/src/impl/Kokkos_Atomic_Windows.hpp:88:58: note: (if you use ‘-fpermissive’, G++ will accept your code, but allowing the use of an undeclared name is deprecated)
[01:28:54] make[2]: *** [core/src/CMakeFiles/kokkoscore.dir/build.make:140: core/src/CMakeFiles/kokkoscore.dir/impl/Kokkos_HostBarrier.cpp.obj] Error 1

This seems to be defined as a MSVC intrinsic, but is missing from mingw. It looks like there are 64 and 128 versions in intrin.h but no 8 version.

Googling around, it looks like ReactOS carries gcc ports around?

I tried adding both #include <intrin.h> and #include <winnt.h> statement as a wild guess, but that still returns the same error.

[giordano]

I'm a bit confused: what was that made the MinGW build work?

[Crghilardi]

I don't know exactly, there were a lot of changes and files modified between the 3.4.1 release and 3.5.0. I am just guessing some macro flags or something was mis-aligned or not triggering?

I don't know if my ramblings above were actually meaningful in any way, so take them with a grain of salt

[giordano]

Ok, I missed you had upgraded the version in the meantime, that may have had an effect then.

[Crghilardi]

I also attempted to submit a patch upstream here for completeness.